Package: uucp Version: 1.07-25 Severity: normal Hi,
I've found many uucio processes still alive after the call-out to the
server and uux run. They are all sitting in this block in unix/detach.c:
/* We'll always wind up as a child of process number 1, right?
Right? We have to wait for our parent to die before
reenabling SIGHUP. */
while (getppid () != 1)
sleep (1);
I've put my user session under supervision of systemd. Hence, the fork not
ended as child of init (pid = 1), but as child of my `systemd --user`
process, whose pid is not 1. Therefore, it's waiting there forever to
become a child process of pid 1.
I've applied this patch and it fixed the problem:
diff -u /tmp/uucp-1.07-24/unix/detach.c /tmp/uucp-1.07-25/unix/detach.c
--- /tmp/uucp-1.07-24/unix/detach.c 2003-05-29 08:08:48.000000000 +0200
+++ /tmp/uucp-1.07-25/unix/detach.c 2019-02-15 23:13:33.044217199 +0100
@@ -98,10 +98,8 @@
if (ipid != 0)
_exit (EXIT_SUCCESS);
- /* We'll always wind up as a child of process number 1, right?
- Right? We have to wait for our parent to die before
- reenabling SIGHUP. */
- while (getppid () != 1)
+ /* We have to wait for our parent to die before reenabling SIGHUP. */
+ while (getppid () == igrp)
sleep (1);
ipid = getpid ();
The assumption that the new parent of an orphaned child becomes the init
process is no longer true control groups (cgroups).
Regards Jörg
-- System Information:
Debian Release: buster/sid
APT prefers unstable-debug
APT policy: (500, 'unstable-debug'), (500, 'unstable'), (1,
'experimental-debug'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386
Kernel: Linux 4.20.0-trunk-amd64 (SMP w/8 CPU cores)
Kernel taint flags: TAINT_CRAP, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8),
LANGUAGE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled
Versions of packages uucp depends on:
ii bsd-mailx [mailx] 8.1.2-0.20180807cvs-1
ii cu 1.07-25
ii libc6 2.28-7
ii libpam-runtime 1.3.1-5
ii libpam0g 1.3.1-5
ii mailutils [mailx] 1:3.5-2
ii netbase 5.6
ii systemd-cron [cron-daemon] 1.5.14-2
Versions of packages uucp recommends:
ii exim4 4.92~RC6-1
ii logrotate 3.14.0-4
uucp suggests no packages.
-- Configuration Files:
/etc/uucp/call [Errno 13] Keine Berechtigung: '/etc/uucp/call'
/etc/uucp/passwd [Errno 13] Keine Berechtigung: '/etc/uucp/passwd'
-- no debconf information
--
Ein Mensch sieht ein und das ist wichtig,
nichts ist ganz falsch und nichts ganz richtig.
(Eugen Roth)
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